Finding the Fourth Proportional to 16,287.80, 22,465.50 and 10,002.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,287.80 : 22,465.50 = 10,002.20 : x
2. Step 2: Convert to fraction form
   16,287.80/22,465.50 = 10,002.20/x
3. Step 3: Cross multiply
   16,287.80x = 22,465.50 × 10,002.20
4. Step 4: Simplify right side
   16,287.80x = 224,704,424.10
5. Step 5: Solve for x
   x = 224,704,424.10/16,287.80
6. Step 6: Final answer
   x = 13,795.87